Abstract

In a VCT system having a feedback loop for controlling a phaser angular relationship, a control law disposed to receive a plurality of set point values and a plurality of feed back values is provided to include: a computation block for receiving the plurality of set point values as inputs, the computation block outputting a first output and a second output; a first summer for summing the first output and the plurality of feed back values to produce a first sum (e0); a phase integrator and a phase compensator receiving the first sum (e0) and derivatives (e1) thereof outputting a processed value (e2); a amplifier amplifying the second output by a predetermined scale (Kff); and e) a second summer for summing the processed value (e2) and the amplified second output to produce a second sum (e3).